function initScrollLayers() {
	var wndo1 = new dw_scrollObj('contenu', 'lyr1', null);
	wndo1.setUpScrollbar("dragBar1", "track1", "v", 1, 1);
	dw_showLayers("scrollbar1");
}

function dw_showLayers() {
	if ( document.getElementById ) {
		var lyr, i;
		for (i=0; arguments[i]; i++) {
			lyr = document.getElementById( arguments[i] );
			lyr.style.visibility = "visible";
		}
	}
}